There is always "a little bit more" that you can learn about any programming language. This chapter is a collection of features that don't necessarily belong in any specific chapter of this book or any of the previous books in the series, but are still very useful to know.
Note
The theme of this chapter is "a collection of different topics that were not covered in any previous chapter or book from this series". As a result, you may find the topics skip around randomly!
Perl development environments
Which platform/derivative/tool(s) that you use to ...
